[INFO] cloning repository https://github.com/Poultryghast/compression [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Poultryghast/compression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoultryghast%2Fcompression", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoultryghast%2Fcompression'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4b04c68234d4e9fd81ec229c48e282a9119a3629 [INFO] checking Poultryghast/compression against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoultryghast%2Fcompression" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Poultryghast/compression on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Poultryghast/compression [INFO] finished tweaking git repo https://github.com/Poultryghast/compression [INFO] tweaked toml for git repo https://github.com/Poultryghast/compression written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Poultryghast/compression already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded yaml-rust v0.3.5 [INFO] [stderr] Downloaded wyz v0.4.0 [INFO] [stderr] Downloaded funty v1.2.0 [INFO] [stderr] Downloaded radium v0.6.2 [INFO] [stderr] Downloaded bitvec v0.22.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f2fcec3c689ac3bec2267d5b782b7a0ed91f258c2cee6c01212e3ebc216776de [INFO] running `Command { std: "docker" "start" "-a" "f2fcec3c689ac3bec2267d5b782b7a0ed91f258c2cee6c01212e3ebc216776de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f2fcec3c689ac3bec2267d5b782b7a0ed91f258c2cee6c01212e3ebc216776de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2fcec3c689ac3bec2267d5b782b7a0ed91f258c2cee6c01212e3ebc216776de", kill_on_drop: false }` [INFO] [stdout] f2fcec3c689ac3bec2267d5b782b7a0ed91f258c2cee6c01212e3ebc216776de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0a105cb98bb0228b815cfa505671ffe0218566e4e124defcaac0402e583eecb5 [INFO] running `Command { std: "docker" "start" "-a" "0a105cb98bb0228b815cfa505671ffe0218566e4e124defcaac0402e583eecb5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking wyz v0.4.0 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking funty v1.2.0 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking bitvec v0.22.3 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking rayon v1.5.1 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking compression v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/node.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use compression; [INFO] [stdout] | ^^^^^^^^^^^ the item `compression` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use compression; [INFO] [stdout] | ^^^^^^^^^^^ the item `compression` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> src/test.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use compression; [INFO] [stdout] | ^^^^^^^^^^^ the item `compression` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/node.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> benches/huffman.rs:2:19 [INFO] [stdout] | [INFO] [stdout] 2 | use compression::{self, compress, decompress}; [INFO] [stdout] | ^^^^ the item `compression` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.33s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4` [INFO] running `Command { std: "docker" "inspect" "0a105cb98bb0228b815cfa505671ffe0218566e4e124defcaac0402e583eecb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a105cb98bb0228b815cfa505671ffe0218566e4e124defcaac0402e583eecb5", kill_on_drop: false }` [INFO] [stdout] 0a105cb98bb0228b815cfa505671ffe0218566e4e124defcaac0402e583eecb5 [INFO] checking Poultryghast/compression against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoultryghast%2Fcompression" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Poultryghast/compression on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Poultryghast/compression [INFO] finished tweaking git repo https://github.com/Poultryghast/compression [INFO] tweaked toml for git repo https://github.com/Poultryghast/compression written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Poultryghast/compression already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 796e99ee2e7caf16b676871cf1352bbd1dc2f386c61e57192f7ab6950c9dc5f8 [INFO] running `Command { std: "docker" "start" "-a" "796e99ee2e7caf16b676871cf1352bbd1dc2f386c61e57192f7ab6950c9dc5f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "796e99ee2e7caf16b676871cf1352bbd1dc2f386c61e57192f7ab6950c9dc5f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "796e99ee2e7caf16b676871cf1352bbd1dc2f386c61e57192f7ab6950c9dc5f8", kill_on_drop: false }` [INFO] [stdout] 796e99ee2e7caf16b676871cf1352bbd1dc2f386c61e57192f7ab6950c9dc5f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2357b3ed94d7dc64a63e077e7df29a1c9e4a50282cc50f5478b266ae5182cc8f [INFO] running `Command { std: "docker" "start" "-a" "2357b3ed94d7dc64a63e077e7df29a1c9e4a50282cc50f5478b266ae5182cc8f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking wyz v0.4.0 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking funty v1.2.0 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking bitvec v0.22.3 [INFO] [stderr] Checking rayon v1.5.1 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking compression v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/node.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use compression; [INFO] [stdout] | ^^^^^^^^^^^ the item `compression` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/node.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use compression; [INFO] [stdout] | ^^^^^^^^^^^ the item `compression` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> src/test.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use compression; [INFO] [stdout] | ^^^^^^^^^^^ the item `compression` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `compression` is imported redundantly [INFO] [stdout] --> benches/huffman.rs:2:19 [INFO] [stdout] | [INFO] [stdout] 2 | use compression::{self, compress, decompress}; [INFO] [stdout] | ^^^^ the item `compression` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.07s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "2357b3ed94d7dc64a63e077e7df29a1c9e4a50282cc50f5478b266ae5182cc8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2357b3ed94d7dc64a63e077e7df29a1c9e4a50282cc50f5478b266ae5182cc8f", kill_on_drop: false }` [INFO] [stdout] 2357b3ed94d7dc64a63e077e7df29a1c9e4a50282cc50f5478b266ae5182cc8f